fr quest:Kart Driver: The Keys to Victory

To Start: Speak to Linx Redline in Tangletrack Speedway.Linx Redline says,"Honestly, I wish you the best. I'll stick to my promise and never challenge you again, but I hope I get the chance to compete against you again.
The only racer standing between you and Kade Carmichael is Mirana Vega. She's the next racer you need to beat.
Talk to her and see if you can set up a race.
"Help Mirana Vega find her lost keys near Tangletrack Speedway.This is a Minigame quest. This quest will advance the Kart Driver job.